WO2000069597A1 - Procede et dispositif de polissage double face - Google Patents
Procede et dispositif de polissage double face Download PDFInfo
- Publication number
- WO2000069597A1 WO2000069597A1 PCT/JP2000/003159 JP0003159W WO0069597A1 WO 2000069597 A1 WO2000069597 A1 WO 2000069597A1 JP 0003159 W JP0003159 W JP 0003159W WO 0069597 A1 WO0069597 A1 WO 0069597A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- double
- rotating
- platen
- work
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/005—Feeding or manipulating devices specially adapted to grinding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/017—Devices or means for dressing, cleaning or otherwise conditioning lapping tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
- B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
Definitions
- Double-side polishing method and apparatus Double-side polishing method and apparatus
- the present invention relates to a double-side polishing method and apparatus used for double-side polishing of a silicon wafer, for example.
- the silicon wafer which is a material for semiconductor devices, is cut into single-crystal silicon, subjected to rubbing, and then further polished to a mirror finish.
- this mirror finish was applied only to the device forming surface.However, in the case of large-diameter devices larger than 8 inches, for example, 12 inches, the back surface on which no device is formed must have a finish comparable to the mirror surface. As a result, it became necessary to apply polishing on both sides.
- FIG. 27 is a view taken along line CC of FIG. 26.
- the planetary gear type double-side polishing machine is composed of a pair of upper and lower rotating surfaces 1, 2 and a plurality of carriers 3, 3, ⁇ ⁇ arranged as planet gears around the center of rotation between the rotating surfaces 1 and 2.
- a sun gear 4 is provided at the center of rotation between the platens 1 and 2
- an annular internal gear 5 is provided at an outer peripheral portion between the platens 1 and 2.
- the upper rotating platen 1 can be moved up and down, and its rotating direction is opposite to the rotating direction of the lower rotating platen 2. Polishing cloth (see figure) (Not shown) is attached.
- Each carrier 3 has an eccentric circular receiving hole, and holds a circular work 6 made of silicon wafer in the receiving hole.
- the sun gear 4 and the internal gear 5 mesh with the plurality of carriers 3 from inside and outside, and are normally driven to rotate in the same direction as the lower rotating platen 2.
- a plurality of carriers 3, 3,... are set on the lower rotating platen 2 while the upper rotating platen 1 is raised, and the work 6 is placed in each carrier 3. It is conveyed and supplied to the rotating platen 2.
- the upper rotating platen 1 is lowered, and the workpieces 6, 6 ⁇ ⁇ are sandwiched between the rotating platens 1 and 2, more specifically, between the upper and lower polishing cloths.
- the rotating surface plates 1 and 2, the sun gear 4, and the internal gear 5 are rotationally driven while the abrasive liquid is supplied between the rotating surface plates 1 and 2.
- a plurality of push rods are provided on the upper rotating platen 1 corresponding to the plurality of works 6, 6,.
- a plurality of suction nozzles are provided on the upper rotating platen 1 corresponding to a plurality of workpieces 6, 6,... Between the rotating platens 1 and 2, and the rotating platen after polish is completed.
- the technology of adsorbing and holding all of the peaks 6, 6,... Between rotating platens 1 and 2 to the upper rotating platen 1 at the time of ascending 1 is disclosed in Japanese Unexamined Patent Publication No. Hei 9—88920. It is presented by the gazette.
- a cleaning process is performed by brushing the polishing cloth mounted on each opposing surface of the rotary platens 1 and 2.
- the process itself is such that a brush having the same outer shape as the carrier 3 is interposed between the rotating platens 1 and 2 like the carriers 3, 3
- the worker manually supplies the brush on the lower rotating platen 2 and after the processing, the worker manually supplies the lower rotating platen 2 This was done by discharging the brush from above.
- An object of the present invention is to enable complete automation of a double-sided polishing operation by removing various factors that hinder the automation.
- a first object of the present invention is to provide a double-side polishing method and apparatus capable of fully automatically supplying a large-diameter work such as a 12-inch silicon wafer onto a lower rotating platen. Is to do.
- a second object of the present invention is to provide a double-side polishing method and a double-side polishing method capable of automatically discharging a gap between upper and lower rotary platens and also reliably preventing mechanical damage and drying of a work. It is to provide a device.
- a third object of the present invention is to provide a double-side polishing apparatus capable of efficiently and economically performing high-quality double-side polishing using frequent brushing and dressing.
- Another object of the present invention is to provide a double-side polishing apparatus which can polish a large work with high accuracy and high efficiency at low cost and can prevent the work from being contaminated.
- Still another object of the present invention is to provide a double-side polishing apparatus capable of increasing the utilization rate of the polishing liquid supplied between the upper and lower platens and preventing the polishing liquid from entering the driving section. It is in.
- the plurality of carriers holding the work to be polished are rotated at least between upper and lower rotating platens, thereby simultaneously polishing the plurality of works held by the plurality of carriers on both surfaces.
- the double-side polishing method for polishing includes a step of combining the work with the carrier before supplying the work to the lower platen, and a step of supplying the work combined with the carrier to the lower platen in a combined state. ing.
- the first double-side polishing apparatus according to the present invention is characterized in that a plurality of carriers holding a workpiece to be polished are rotated at least between upper and lower rotating platens, thereby simultaneously polishing a plurality of workpieces held by a plurality of carriers on both sides.
- a polishing device main body for polishing for polishing, a combining mechanism for combining the work with the carrier outside the polishing device main body, and a supply mechanism for supplying the work combined with the carrier outside the polishing device main body to the lower platen in a combined state.
- the carrier is not previously placed on the lower surface plate when the work is supplied onto the lower surface plate, but before the work is supplied, that is, outside the polishing device body.
- the polished work may be discharged from the lower platen separately from the carrier, or may be discharged from the lower platen while being combined with the carrier.
- the latter is preferred from the viewpoint of simplifying the structure of the device. That is, by discharging the polished work from the lower surface plate while being combined with the carrier, a supply mechanism for supplying the work and the carrier onto the lower surface plate can be used as a discharge mechanism for the work and the carrier.
- the first alignment mechanism that aligns the carrier, the second alignment mechanism that aligns the workpiece before it is integrated with the carrier, and the wafer that has been aligned are aligned. It is preferable to use a device having a transfer mechanism for transferring the material into the carrier, since a reliable uniting operation can be performed with a simple device configuration.
- the lower surface plate For the work supply on the lower surface plate, the lower surface plate is conventionally fixed. The work was transported to multiple positions on the surface plate.However, in this supply mode, the work transfer mechanism became complicated and the transfer accuracy was reduced.Therefore, by performing an indexing operation to rotate the lower surface plate by a predetermined angle, It is preferable that the workpieces are sequentially conveyed to a fixed position.
- the supply of the work to the fixed position in combination with the indexing operation is performed not only when the work is combined with the carrier and supplied to the main body of the polishing apparatus, but also when the work is combined with a plurality of carriers preset in the main body of the polishing apparatus. It is also applicable to cases where similar effects can be obtained.
- the plurality of carriers holding the work to be polished are rotated at least between upper and lower rotating platens, so that the plurality of workpieces held by the plurality of carriers are simultaneously coated on both surfaces.
- a plurality of fluid nozzles opening on the surface of the surface plate are provided on the upper surface plate and / or the lower surface plate so as to face a plurality of works between the surface plates.
- a second double-side polishing apparatus is characterized in that a plurality of carriers holding a workpiece to be polished are rotated at least between upper and lower rotating platens, thereby simultaneously polishing a plurality of workpieces held by a plurality of carriers.
- a polishing device main body is provided for polishing.
- the upper rotating platen and / or the lower rotating platen have a plurality of fluid nozzles that open on the surface of the platen so as to face multiple works between the rotating platens.
- the fluid nozzles on the upper rotating plate are connected to the liquid supply mechanism, and the fluid nozzles on the lower rotating plate are connected to the suction mechanism. .
- the rotary platen when the rotary platen is separated after the double-side polishing, all the work between the rotary platens is ejected by a fluid from the upper side and / or a fluid by suction to the lower side.
- the pressure ensures that it is held on the lower rotating platen side.
- the lower rotating platen is filled with a liquid such as an abrasive liquid, and the work is held on the rotating platen to prevent the work from drying.
- fluid injection from above does not cause mechanical damage to the work and does not dry the work. Rather, the liquid can be supplied to the upper surface of the work piece, and the work can be positively prevented from drying.
- Either one of the fluid ejection from the upper side and the suction from the lower side may be used, or both may be used.
- prolonged suction to the lower side may cause liquid remaining on the lower rotating platen to be removed and cause the lower surface of the work to dry.
- the plurality of fluid nozzles are provided not only on the entire surface of the rotating platen but only at positions corresponding to the plurality of workpieces between the rotating platens, because the fluid pressure can be effectively used. In this case, after polishing is completed, it is necessary to stop the rotary platen at a position where the plurality of fluid nozzles face each surface of the plurality of workpieces.
- the third double-side polishing apparatus is configured to simultaneously rotate a plurality of carriers holding a workpiece to be polished by rotating the plurality of carriers between upper and lower rotating platens, thereby simultaneously transferring the plurality of workpieces held by the plurality of carriers.
- a double-side polishing machine that performs double-side polishing, it is arranged between upper and lower rotating platens instead of a plurality of carriers, and at least rotates between the upper and lower rotating platens like a carrier, so that the upper and lower rotating platens face each other.
- a storage section for storing a plurality of processing bodies for processing the mounted abrasive cloth, and a plurality of processing bodies are supplied between the upper and lower rotary platens from the storage section, and the used processing bodies are transferred between the upper and lower rotary platens.
- a transport section for discharging is
- the processing object is a brush for cleaning the polishing cloth and / or a dresser for leveling the polishing cloth.
- the third double-side polishing apparatus of the present invention not only the work but also the brush and the dresser are automatically supplied and automatically discharged. Therefore, even when brushing and dressing the polishing cloth frequently, the work efficiency is improved. Reduction and increase of operation cost are avoided. Therefore, high-quality double-side polishing using frequent brushing and dressing is performed efficiently and economically, and it is even possible to perform dressing every time double-side polishing is performed.
- brushing and dressing are compared, it is preferable to emphasize brushing. For this reason, it is necessary to automate brushing, and it is desirable to combine dressing automation as necessary. You.
- a configuration that supplies the work before polishing between the upper and lower rotary platens and discharges the polished work from between the upper and lower rotary platens is also preferable for the purpose of streamlining the equipment. .
- the main body of the polishing apparatus includes a pair of rotary bases for polishing both surfaces of the work, a plurality of gear-type carriers arranged around a rotation center between the pair of rotary bases, each of which holds the work eccentrically.
- a center gear that is arranged at the center of rotation between the rotating platens and engages with a plurality of carriers arranged around the center gear to synchronize and rotate the plurality of carriers, and a center gear around each of the plurality of carriers It is preferable to provide a plurality of rotation means which are distributed and arranged correspondingly, and each of which engages with the inner carrier and holds the carrier in a fixed position in cooperation with the center gear to rotate.
- the plurality of rotation means be engaged with the carrier at one or more positions, and that the teeth be rotated by one or more rotation gears along the rotation axis. Further, a configuration in which the carrier is rotated by a worm gear is preferable.
- the rotating gear has a structure that can be moved in the direction of the rotating shaft, a structure in which a plurality of thin gears having a small thickness are stacked in the direction of the rotating shaft, or a structure in which both are combined.
- the manufacturing cost is reduced.
- the rotating gear By making the rotating gear movable in the direction of the rotation axis, local wear due to engagement with the carrier is suppressed, and the frequency of replacement is reduced, thereby reducing the polishing cost.
- a worn part By forming a structure in which a plurality of thin gears having a small thickness are stacked in the direction of the rotation axis, a worn part can be partially replaced, and a polishing cost is reduced. The combination of the two particularly reduces the polishing cost.
- the material of the rotating gear may be either metal or non-metal, but among non-metals, resin is particularly preferable.
- the rotary gear made of resin can prevent work contamination due to metal powder and can reduce wear of expensive carriers. The increase in the polishing cost due to the wear itself can be effectively avoided by combining the above structures.
- the type of the resin monomer-casting nylon, PVC or the like is preferable from the viewpoint of procurement cost, mechanical strength, workability, and the like.
- the type of rotary gear is basically a so-called spur gear whose teeth are parallel to the rotation axis, but the teeth are slightly inclined with respect to the rotation axis (for example, inclined at an angle of 10 ° or less). It may be a gear.
- the pins are not limited to normal gears in which peaks and valleys are repeated in the circumferential direction, and pins are arranged at predetermined intervals in the circumferential direction. It may have a structure of
- Each rotation means preferably has a structure in which the rotating gear is engaged with the carrier at two or more positions from the viewpoint of securely holding the carrier at a fixed position.
- the rotating gear By making the rotating gear movable in the direction of the rotating shaft, the rotating gear can be retracted from a fixed position, and the operation of setting and removing the carrier is simplified.
- the retracting structure of the rotating gear can be not only by moving in the direction of the rotating shaft but also by moving radially or obliquely.
- the worm gear is arranged so that the rotation axis is substantially parallel to the tangent of the inner carrier, and makes linear contact with the carrier in the circumferential direction. Therefore, even when the worm gear is made of resin, its wear is suppressed. Further, the carrier can be securely held at a fixed position by one gear, and the configuration of the rotation means can be particularly simplified. In other words, in order to securely hold the inner carrier in place, two spur gears need to be provided on the outside of the carrier, but a worm gear requires only one, and two need not be provided. .
- a straight type whose outer diameter is constant in the direction of the rotation axis (see Fig. 19 (a)) is generally used, but the outer diameter of the worm gear in the direction of the rotation axis corresponds to the outer circumferential arc of the inner carrier. It is also possible to use a modified drum-shaped one (see Fig. 19 (b)), and the latter, which has a longer contact length with the carrier, is preferred from the viewpoint of suppressing wear.
- the material of the worm gear may be either a metal or a non-metal, but a resin is particularly preferable among the non-metals.
- the worm gear made of resin can avoid peak contamination due to metal powder and can reduce wear of expensive carriers.
- a monomer casting resin or PVC is preferable in terms of procurement cost, mechanical strength, workability, and the like.
- Multiple rotation means can be driven synchronously by a common drive source .
- the common drive source here can also serve as the drive source for the center one gear. Further, it can be electrically driven synchronously using a separate drive source.
- a plurality of carriers holding the wafer are arranged at predetermined intervals in the rotational direction between the upper and lower rotating platens, and each carrier is a sun gear at the center of the platen and an inner gear at the periphery of the platen.
- each carrier performs a planetary movement between the upper and lower rotating platens to polish both sides of the wafer held by each carrier, and the abrasive liquid is supplied between the upper and lower rotating platens.
- a plurality of abrasive fluid supply paths are provided on the upper rotating platen, and a sun gear is integrated with the center of the lower rotating platen.
- the sun gear is integrated with the lower rotating plate, so that the polishing liquid supplied between the upper and lower rotating plates is separated from the inner gear on the outer peripheral side and the lower rotating plate. It is discharged only from the gap between the disc and the disc. For this reason, the residence time of the polishing liquid between the upper and lower rotating platens becomes longer, the utilization rate of the polishing liquid is improved, and the penetration of the polishing liquid into the drive section concentrated in the central portion is avoided. If the abrasive liquid is supplied intensively to the center side, the abrasive liquid moves to the outer peripheral side by centrifugal force, so that the utilization rate of the abrasive liquid is further improved.
- the sun gear When the sun gear is integrated with the lower rotating plate, it is impossible to drive the sun gear independently of the lower rotating plate, and the upper rotating plate is linked to the sun gear.
- the upper and lower rotating platens rotate synchronously at a constant speed.
- the planetary motion of the carrier is performed as the sun gear rotates with the lower rotating plate.
- the abrasive liquid is sucked by the speed difference between the upper rotating platen and the carrier.
- the upper rotating platen may be driven to rotate independently of the lower rotating platen.
- the main body of the polishing machine also has an annular carrier holding the wafer inside.
- This is a method in which both sides of the wafer held in the carrier are polished by performing a planetary motion between the surface plates of the carrier, and a notch formed on an outer circumferential surface of the carrier is formed on an inner circumferential surface of the carrier. It is preferable that a convex portion to be fitted is provided L. Also, in the carrier of the present invention, a wafer to be polished on both sides is fitted inside, and a notch formed on an outer peripheral surface of the wafer is fitted. Are provided on the inner peripheral surface.
- a notch such as a V notch or orientation flat representing the crystal orientation of the wafer is formed.
- CFRP carbon fiber reinforced plastic
- high-strength abrasion-resistant plastic is preferable. It is also possible to use a resin reinforced with the above-described stainless steel, glass fiber, or the like, for example, an epoxy resin, a phenol resin, a nylon resin, or the like. In the case of a resin carrier other than a high-strength abrasion-resistant plastic, it is preferable to coat a high-strength abrasion-resistant plastic on the inner peripheral surface thereof.
- a resin having low frictional resistance on the inner peripheral surface of the carrier. This also prevents wear on the inner surface of the carrier due to the change in the contact surface between the carrier and the carrier during polishing.
- the resin having a low frictional resistance coated on the inner peripheral surface of the carrier high-molecular polyethylene, epoxy resin, fluororesin, PPS, ceramic, PEEK, PES, and the like can be used.
- the double-side polishing apparatus of the present invention uses an Ea transfer device as ancillary equipment.
- the wafer transfer device includes a robot arm that moves in at least two directions for transferring a horizontally supported wafer, and a robot arm that is attached to the robot arm to suck the upper surface of the wafer. And an outer peripheral portion having a plurality of suction ports formed in the annular contact surface in an annular manner with a gap in the circumferential direction.
- An annular adsorption type is preferred.
- the outer peripheral annular suction type chuck contacts the upper surface of the wafer 18, but the contact portion is limited to the periphery of the wafer. (4) Since the peripheral portion of the wafer is usually a region that is not a target of device formation, gripping during handling is allowed. In addition, since the chuck contacts the entire periphery of the wafer 18, the wafer can be reliably held even though it is in partial contact.
- the wafer transfer device also has a robot arm that moves in at least two directions for transferring a horizontally supported wafer, and is attached to the robot arm, and supports the wafer from below. And a chuck for adsorbing the lower surface of the wafer.
- the chuck contacts an arc-shaped portion of the lower surface of the peripheral portion of the wafer in the circumferential direction, and a circumferential gap is formed in the arc-shaped contact surface.
- the outer periphery arc-shaped suction type chuck contacts the lower surface of the wafer 18, but the contact portion is limited to a part of the wafer periphery.
- FIG. 1 is a plan view of a double-side polishing facility according to an embodiment of the present invention.
- FIG. 2 is a plan view of a double-side polishing apparatus used in the double-side polishing equipment.
- Figure 3 is a plan view of the lower rotating platen.
- Fig. 4 is a longitudinal sectional view of the lower rotating platen.
- FIG. 5 is a longitudinal sectional view of the upper rotating platen.
- FIG. 6 is a plan view of a combining mechanism for combining a work and a carrier.
- FIG. 7 is a side view of the uniting mechanism.
- FIG. 8 is a side view of the carrier transport mechanism in the combining mechanism.
- FIG. 9 is a plan view and a side view of a supply mechanism for supplying a work onto the lower surface plate.
- FIG. 10 is a plan view and a side view of the brush storage unit.
- FIG. 11 is a plan view and a side view of the dresser storage section.
- FIG. 12 is a longitudinal sectional view showing one embodiment of the polishing apparatus main body, mainly showing a carrier driving mechanism.
- FIG. 13 is a diagram showing an arrow AA in FIG.
- FIG. 14 is a plan view of a power transmission system for carrier drive.
- FIG. 15 is a plan view of another carrier driving mechanism.
- FIG. 16 is a plan view of a power transmission system of the carrier drive mechanism.
- FIG. 17 is a plan view of still another carrier drive mechanism.
- FIG. 18 is a front view of the rotation means.
- FIG. 19 is a plan view of the worm gear.
- FIG. 20 is a schematic side view showing another embodiment of the polishing apparatus main body.
- FIG. 21 is a view taken along line BB of FIG.
- FIG. 22 is a plan view showing still another embodiment of a polishing apparatus main body for a carrier.
- FIG. 23 is a plan view of another carrier.
- FIG. 24 is a configuration diagram of a main part of the wafer transfer apparatus according to an embodiment of the present invention, (a) is a plan view, and (b) is a side view.
- FIG. 25 is a configuration diagram of a main part of the wafer transfer apparatus showing another embodiment of the wafer transfer apparatus, where (a) is a plan view and (b) is a side view.
- FIG. 26 is a schematic configuration diagram of a double-side polishing apparatus.
- FIG. 27 is a diagram showing a line CC in FIG. 12. BEST MODE FOR CARRYING OUT THE INVENTION
- the double-side polishing equipment shown in Fig. 1 is used for automatic double-side polishing of silicon wafer 18.
- This double-side polishing apparatus is composed of a plurality of double-side polishing apparatuses 100, 100, ... arranged in a lateral direction, a loader fan loader apparatus 200 arranged on the side thereof, and a basket connecting these.
- the transfer device 300 is provided.
- the loader / unloader device 200 includes a suction-type work transfer robot 210.
- the work transfer robot 210 takes out the work 400 before polishing made of silicon wafers from the carry-in basket 220 and transfers the work basket 310 in the basket transfer device 300. It will be transferred inside. Further, the workpiece 400 after polishing is taken out of the transport basket 310 and transferred to the carry-out basket 230.
- the transport basket 310 accommodates a plurality of workpieces 400, 400,... Vertically stacked at predetermined intervals.
- the basket transfer device 300 has a plurality of lifting mechanisms 320, 320 corresponding to the plurality of double-side polishing devices 100, 100, and so on.
- the transport basket 310 in which 00 is stored is selectively transported from the loader / unloader device 200 to the plurality of lifting / lowering mechanisms 320, 320,.
- the transport basket 310 in which the workpiece 400 after polishing is accommodated is transported to the loader / unloader device 200 from the lifting / lowering mechanism 320,320.
- the lifting / lowering mechanism 320 is used to transfer a plurality of buckets 400, 400 ... stored in the transport basket 310 to the corresponding double-side polishing apparatus 100,
- the transport basket 310 is moved up and down at a pitch corresponding to the accommodation and alignment pitch of the workpieces 400, 400.
- the double-side polishing apparatus 100 is mounted on a common base frame as shown in FIG. Polishing machine body 110, first work transfer section 120, work positioning section 130, carrier storage section 140, carrier transfer section 150, carrier positioning section 160, second work It has a transport unit 170, a brush storage unit 180, and a dresser storage unit 190.
- the polishing machine body 110 consists of a lower rotating platen 1 1 1, an upper rotating platen 1 1 2 (see Fig. 5) concentrically combined with the lower rotating platen 1 1 1, and a lower rotating platen 1 1 11 includes a center gear 1 13 provided on the center of 1 1, and a plurality of rotation means 1 1 4, 1 1 4 ⁇ ⁇ provided around the lower rotating platen 1 1 1 O o
- the lower rotating platen 1 1 1 1 supports a plurality of carriers 500, 500, ... around the center gear 113.
- the carrier 500 is a circular external gear having a circular receiving hole 5100 at a position eccentric with respect to the center thereof, and a silicon wafer, which is a workpiece 400, is provided in the receiving hole 5100. To accommodate.
- the rotating surface plate 111 is a disk having an opening at the center, and is mounted on the rotating support member 111a having a cavity at the center. Have been.
- the rotation supporting member 111a is driven to rotate in a predetermined direction by a driving mechanism (not shown), thereby rotating the rotating platen 111 in a predetermined direction and stopping at the origin position.
- the origin position is a reference stop position of the rotary platen 111 before and after polishing, particularly after polishing.
- the rotary platen 111 is provided with a plurality of nozzles 111b, 111b, penetrating the rotary platen 111 in the thickness direction.
- the plurality of nozzles 1 1 1 1 b and 1 1 1 b are provided so as to correspond to the workpiece 4 0 0 in the carrier 5 0 0 when the rotary platen 11 1 stops at the home position. .
- These nozzles 1 1 1b, 1 1 1 1 b ⁇ ⁇ are provided with conduits 1 1 1 c and 1 1 1 c ⁇ between the rotating platen 1 1 1 and the disk portion of the rotating support member 1 1 1a.
- Rotation support Suction device (not shown) via the vertical holes 1 lid, 1 1 d, provided in the shaft of the material 1 1a and the one-way joint 1 1 1e attached to the shaft It is connected to the.
- the upper rotating surface plate 112 is an annular disk, and is attached to the lower surface of the disk portion of the rotation supporting member 112a.
- the rotation support member 112a is vertically driven and rotationally driven by a drive mechanism (not shown).
- the rotating platen 1 1 2 moves up and down on the lower rotating platen 1 1 1 1, rotates in the opposite direction to the rotating platen 1 1 1, and stops at the home position o
- the rotary platen 112 is provided with a plurality of nozzles 112b, 112b- 'that penetrate the rotary platen 112 in the thickness direction.
- the plurality of nozzles 1 1 2 b, 1 1 2 b ⁇ ⁇ ⁇ are similar to the nozzles 1 1 1 b ⁇ 1 1 1 ⁇ ⁇ ⁇ and the carrier 500 when the rotary platen 1 1 2 stops at the home position. It is provided so as to correspond to the work 400 inside.
- These nozzles 112b, 112b ⁇ ⁇ are conduits 112c, 112. ⁇ Connected to a fluid supply device (not shown) via a horizontal hole and a vertical hole provided in the disk portion of the rotation support member 11a.
- the center gear 1 1 3 of the main body 110 of the polishing apparatus is positioned by a circular recess 1 1 1 f provided on the upper surface of the center of the rotary platen 1 1, and a plurality of center gears 1 1 3 are arranged on the rotary platen 1 1 1 Carriers of 500 and 500
- the drive shaft of the gear 11 1 has an opening 11 1 g provided in the center of the rotating platen 11 1, and a cavity 11 1 1 provided in the center of the rotating support 11 1 a. h, penetrates below the rotation supporting member 111a, and is connected to a driving device (not shown). As a result, the center gear 113 is independently driven to rotate with respect to the lower rotating plate 111.
- a plurality of rotation means 1 1 4, 1 1 4 ⁇ ⁇ ⁇ are arranged on the rotating platen 1 1 1 Outside of the plurality of carriers 500, 500 and each rotating means 1 14 is composed of two vertical gears 1 1 4a, 1 1 4a that engage with the corresponding carrier 500. have.
- the gears 114a and 114a are synchronously driven to rotate in the same direction by a driving device (not shown), so that the corresponding carrier 500 is co-located with the center gear 113 in a fixed position. Rotate.
- the above is the structure of the polishing apparatus main body 110.
- the following are the first work transfer section 120, work positioning section 130, carrier storage section 140, carrier transfer section 150, carrier positioning section 160, second work transfer section 1 ⁇ 0
- the respective structures of the brush storage section 180 and the dresser storage section 190 will be described in order.
- the combining mechanism for combining the workpiece 400 with the carrier 500 outside the polishing apparatus main body 110 includes a first workpiece transport unit 120, a work positioning unit 130, and a carrier transport unit 150. And the carrier positioning unit 160, and the first work transfer unit 120 also serves as a carry-in mechanism for carrying the work 400 into the double-side polishing apparatus 100. Further, a supply mechanism for supplying the workpiece 400 and the carrier 500 integrated on the outside of the polishing apparatus main body 110 onto the lower rotating platen 111 of the polishing apparatus main body 110 is the following.
- the second work transfer section 170 is composed of a work 400, which has been polished on the lower rotating platen 111, and a carrier 500. Also serves as a discharge mechanism that discharges to the outside of the polishing device body 110 in the combined state o
- the first work transfer section 120 is a double-side polishing machine for transferring the work 400 from the transfer basket 310 stopped by the elevating mechanism 320 of the basket transfer apparatus 300.
- the work carrying mechanism for carrying in the work 100 is also used as a work transfer mechanism for transferring the work 400 from the work positioning unit 130 to the carrier positioning unit 160.
- the first work transfer section 120 has a suction arm 1 21 and a suction arm 1 2 1 which horizontally suck the work 400 from above at the lower surface of the tip.
- a drive mechanism 122 composed of an articulated robot for driving the robot in the horizontal and vertical directions.
- the work positioning portion 130 includes a pair of holding members 13 1 and 13 1 for clamping the work 400 from both sides, and holding members 13 1 and 13. And a drive mechanism 1 32 for driving the 1 toward and away.
- the opposing surfaces of the gripping members 13 1 and 13 1 are arc surfaces corresponding to the outer peripheral surface of the work 400.
- the first work transfer unit 120 is a base (not shown) of the work positioning unit 130 from the transfer basket 310 stopped at the elevating mechanism 320 of the basket transfer device 300. Place on top.
- the workpiece 400 placed on the table is located between the gripping members 13 1 and 13 1 separated from both sides. In this state, the gripping members 13 1 and 13 1 approach the inside, and the work 400 is moved to a fixed position by clamping the work 400 from both sides. Thereby, the workpiece 400 is positioned.
- the positioned work 400 is again sucked by the first work transfer section 120 and transferred to a carrier positioning section 160 described later.
- the carrier storage section 140 has a multi-stage support plate 1 for supporting a plurality of carriers 500, 500,... Vertically at predetermined intervals. 4 1 and 1 4 1 ⁇ ⁇ are provided.
- the support shafts 14 2 that support the support plates 14 1, 14 1 ⁇ ⁇ are supported movably in the axial direction by vertically fixed guide sleeves 14 3, and attached to the guide sleeves 14 3. It is driven in the axial direction by a ball screw drive mechanism 144. to this ⁇ Carriers 500, ⁇ Place them on 1 in order.
- each support plate 141 supports the carrier 500 with a part thereof projecting to both sides.
- the carrier transport unit 150 transports the carrier 500 from the carrier storage unit 140 to the carrier positioning unit 160.
- the carrier transport section 150 includes a support table 151 for horizontally supporting the carrier 500, and a pair of transport mechanisms 1502 provided on both sides of the support table 151. , 1 52 and.
- the support base 151 has a cutout 151 a through which the support plates 141, 141,... Of the carrier storage part 140 pass at the end of the carrier storage part 140 side. .
- a circular large-diameter opening 15 1 b through which the receiving base 16 2 of the carrier positioning part 16 0 described later passes.
- a plurality of small-diameter openings 15 1 c and 15 1 c ⁇ into which a plurality of positioning pins 16 3 and 16 3 ⁇ are inserted are provided.
- the transport mechanism 15 2 on each side is movably supported by a horizontal guide rail 15 2a mounted on the side of the support 15 1 and a guide rail 15 2a.
- a drive mechanism 152c for driving the slider 152b drives the belt by a motor, thereby driving the slider 152b connected to the belt straight along the guide rail 152a.
- the slider 15b has a pin-shaped engaging portion 15d that protrudes upward. The engaging portion 15 2 engages with the side of the outer peripheral teeth of the carrier 500 mounted on the support base 15 o
- the carrier storage section 140 is located in a state in which the sliders 152b, 152b of the transport mechanisms 152, 152 on both sides are positioned on both sides of one end of the support base 151.
- the carrier 500 is mounted on one end of the support base 151, so that both sides of the outer peripheral teeth of the carrier 500 have sliders 152b, 15 on both sides.
- the engaging portions 15 2 d and 15 2 d of 2 b are engaged.
- the sliders 15 2 b and 15 2 b move synchronously to both sides of the other end of the support 15 1, so that the carrier 500 moves up to the other end of the support 15 1. It is conveyed and sent to the carrier positioning unit 160.
- the carrier positioning part 160 combined with the other end of the support base 151 positions the carrier 500 as shown in FIGS. 6 and 7. And a circular receiving table 162 on which the workpiece 400 is placed.
- the lifting plate 16 1 has a plurality of positioning pins 16 3, 16 3.
- the pedestal 162 is located above the elevating plate 161, and is driven up and down together with the elevating plate 161 by the lower drive mechanism 1664.
- the initial position of the carrier positioning unit 160 is such that the upper surface of the upper receiving table 162 is substantially flush with the upper surface of the support table 151 of the carrier transporting unit 150. Therefore, in this initial position, a plurality of positioning pins 16
- 16 3 ⁇ are located below the support plate 15 1.
- the receiving hole 510 of the carrier 500 becomes the large-diameter opening 15 of the support base 151. Matches 1 b.
- the lifting plate 16 1 and the receiving table 16 2 are raised. Due to this rise, the plurality of positioning pins 16 3, 16 3 ⁇ pass through the small-diameter openings 15 1 c, 15 1 c ⁇ provided at the other end of the support base 15 1, and then move to the other end. It is inserted from below into a plurality of small-diameter holes 520, 520 provided in the carrier 500 on the part for positioning. As a result, the carrier 500 is positioned on the other end of the support base 151.
- the pedestal 16 2 is the large-diameter opening 15 1 b of the support 15 1
- the carrier rises to above the carrier 500 through the housing hole 5100 of the carrier 500.
- the workpiece 400 that has been positioned by the workpiece positioning unit 130 is sucked and transported by the first workpiece transport unit 120 and placed.
- the lifting plate 16 1 and the receiving table 16 2 are lowered to the initial position.
- the workpiece 400 on the receiving table 162 is inserted into the receiving hole 5100 of the carrier 500 positioned on the other end of the support table 151, and the workpiece 400 is placed. It is combined with the carrier 500 so as to be separable.
- the second work transport section 170 of the double-side polishing apparatus 100 transports the combined workpiece 400 and carrier 500 to the polishing apparatus main body 110.
- the second work transfer section 170 has a suction head 172 attached to the front end of a horizontal arm 171, and an arm 171, with the base at the center. It has a drive mechanism 173 that rotates in a horizontal plane as a center and drives vertically up and down.
- the suction head 17 2 is equipped with a plurality of suction pads 17 4, 17 4 '' on the lower surface to hold the workpiece 400 and the carrier ⁇ ⁇ 50
- the suction head 172 By combining this suction with the rotation and lifting of the suction head 172 associated with the rotation and lifting and lowering of the arm 171, the workpiece 4 0 0 united at the carrier positioning section 16 0 And the carrier 500 are conveyed onto the lower rotating platen 111 of the polishing apparatus main body 110.
- the brush storage section 180 has a support base 18 1 for supporting a plurality of brushes 600, 600 in a thickness direction, and a support base 18 1. Holding members for holding brushes 600, 600, 8 and 2.
- the support shaft 1 8 3 that supports the support base 18 1 is supported by a vertically fixed guide sleeve 18 4 so as to be movable in the axial direction, and a ball screw drive mechanism 1 attached to the guide sleeve 18 4 Driven in the axial direction from 8 5.
- Each brush 600 is an external gear having a shape corresponding to the carrier 500, and is used for cleaning the polishing cloth mounted on the opposing surface of the rotating platen 111, 112. For this cleaning, several brush parts 6 1
- the brush sections 6110, 610 ⁇ ⁇ ⁇ are distributed so that they can be suctioned and conveyed.
- the brushes on the upper surface 61 0, 61 0 ⁇ ⁇ and the brush on the lower surface are brushes 600, 600 ⁇
- the holding members 18 2, 18 2 are brushes 600, 600 on the support base 18 1.
- the brush 600, 600 is held by engaging with the outer peripheral teeth of •.
- the dresser storage section 190 includes a support base 191 for supporting a plurality of dressers 700, 700, and so on in a thickness direction, and a support base 191, A plurality of holding members 1 for holding the upper dresser 700, 700,
- the support base 19 1 has a plurality of support pins 19, whose outer diameters increase stepwise from top to bottom. Supports dressers 700 and 700 by means of 3,193.
- the support shaft 194 that supports the support base 191 is supported by a vertically fixed guide sleeve 1995 so as to be freely movable in the axial direction, and is a ball screw drive mounted on the guide sleeve 1995. Driven in the axial direction by mechanism 196.
- Each dresser 700 is an external gear having a shape corresponding to the carrier 500.
- the rotating platens 1 1 1 and 1 2 Grinding portions 710, 710, etc. which are made up of a large number of diamond pellets, are attached in order to break in the surface of the polishing cloth mounted on the surface. Since the grinding units 7100, 7100,... Are provided only on the outer periphery of the dresser 700, the dresser 700 can also be suction-conveyed.
- the second workpiece transfer section 170 that sucks and transports the workpiece 400 and the carrier 500 combined by the carrier positioning section 160 to the polishing apparatus main body 110 includes a brush 600 and a dresser 700. It also serves as a transfer unit that sucks and transfers to the polishing apparatus main body 110. For this reason, the brush storage section 180 and the dresser storage section 190 are arranged immediately below the turning arc of the suction head 172 of the second work transfer section 170.
- the double-side polishing machine 100 is configured to transfer a plurality of workpieces 400, 400 from the transport basket 310 stopped by the elevating mechanism 320 of the basket transport device 300 to the first workpiece transport unit. Carry in by 120. Specifically, the suction arms 1 21 of the first work transfer section 110 suck the discs 400, 400 in the transfer basket 310 in order from the top and work position. It is placed on a table (not shown) of the fitting section 130. With the removal of the workpieces 400, 400, ⁇ , the transport basket 310 is driven upward by one pitch by the lifting mechanism 320.
- the gripping members 131, 131 approach. As a result, the workpiece 400 is positioned at a predetermined position.
- the carriers 500, 500 in the carrier storage section 140 are the carrier transport sections 150. Is transported from one end to the other end of the support base 15 1 by It is sent to the carrier positioning unit 160.
- the carrier 500 sent to the carrier positioning section 160 is moved up by the lifting plate 161 and the pedestal 162, and by raising the plurality of positioning pins 163, 163 '. It is positioned at a predetermined position.
- the suction arm 1 2 1 of the first work transfer unit 1 20 causes the work 4 0 0 is conveyed.
- the suction arm 1 21 of the first work transfer unit 120 sucks the work 400 aligned by the work positioning unit 130 from above and transfers it to the receiving table 16 2. Therefore, if the workpiece 400 is located at the predetermined position in the workpiece positioning unit 130, the workpiece 400 will be positioned at the predetermined position even on the cradle 162.
- the work 400 is accurately positioned with respect to the receiving hole 510 of the carrier 500 positioned below.
- the work plate 400 is reliably inserted into the receiving hole 510 of the carrier 500 by lowering the lifting plate 161 and the receiving table 162 to the initial position.
- the merging operation can be performed. It is done reliably. Therefore, monitoring and reworking by workers are not required.
- the work 400 is transferred to the work positioning unit 130 by a simple suction-type first work transfer unit 120, and a complicated guide is provided to the first work transfer unit 120. Since there is no need to provide a mechanism, the configuration of the device is simplified.
- the polishing machine When the work 400 and the carrier 500 are combined at the work positioning unit 130, the polishing machine remains in the combined state by the work 400 and the carrier 500, and the second work transfer unit 170.
- Main body 1 1 0 Lower rotating platen 1 1 It is transported to a fixed position on 1. At this time, in the main body 110 of the polishing apparatus, the upper rotating platen 112 rises, and the plurality of rotation means 114, 114 fall.
- the workpieces 400, 400 are fed onto the lower rotating platen 111.
- the second work transfer section 170 that transfers the workpiece 400 and the carrier 500 in order is distributed to multiple positions on the rotary platen 1 1 1
- the structure is simpler and the transfer accuracy is higher than those that perform the transfer.
- the plurality of rotation means 1 1 4, 1 1 4 ⁇ ⁇ ⁇ are lowered, they do not engage with the carriers 5 0 0 ⁇ 5 0 ⁇ ⁇ ⁇ on the rotating platen 11 1.
- the center gear 113 fits the carrier 500, 500 on the rotary platen 111, but the carrier 500, 500 on the rotary platen 111. Is driven in synchronization with the rotation of the rotating platen 111 so that the platen does not move relative to the rotating platen 111. For these reasons, the workpieces 400, 400 supplied on the lower rotating platen 1 1 1 1 are also moved on the rotating platen 1 1 1 by the indexing operation of the rotating platen 1 1 1. Does not cause inadvertent movement.
- the plurality of rotating means 1 1, 1 1 4 The turntable 1 1 2 of the lowers.
- the rotating platen 1 1, 1 1 2 is rotated in the opposite direction while supplying the abrasive liquid between the rotating platen 1 1, 1 1 2.
- the center gear 113 and the rotation means 111, 114 which engage with the carriers 500, 500, ... are synchronously driven to rotate.
- carriers 500, 500 • continues to rotate at a fixed position between the rotary platens 1 1 1 and 1 12, and the workpieces 400 400 held by the carriers 500 500... perform eccentric rotation. Thereby, both surfaces of each work 400 are polished.
- the grinding machine body 110 which rotates the carriers 500, 500 ⁇ ⁇ between the rotating surface plates 1 1 1 and 1 12 at a fixed position, has a larger internal gear compared to the conventional planetary gear system with revolution. By eliminating the need for polishing, the cost of the apparatus can be reduced while maintaining high polishing accuracy. Also, by making the rotating means 114, 114 ⁇ ⁇ ⁇ up and down, the indexing operation of the rotating platen 111 when the workpieces 400, 400 ⁇ ⁇ are supplied can be performed by the rotating platen 111. It can be done simply with the rotation of 1 and 13 gears. If the center gear 113 is a lifting type like the rotation means 114, 114, ⁇ ⁇ ⁇ , the indexing operation can be performed only by rotating the rotary platen 111.
- the upper and lower rotating platens 1 1, 1 and 12 stop at the origin position. After the stop, the rotary platen 112 is raised while spraying fluid such as water from a plurality of nozzles 112b, 112b * provided on the upper rotary platen 112. Also, a plurality of nozzles 1 lib, 1 1 1 b provided on the lower rotating platen 11 are sucked.
- the nozzles 1 12 b and 1 12 b ⁇ ⁇ are opposed to the upper surface of the workpiece 400 and 400 ⁇
- the nozzles 111b and 111b are opposed to the upper surfaces of the workpieces 400 and 400. Therefore, the workpieces 400, 400 ⁇ ⁇ ⁇ are pressed by the fluid jet from above and sucked downward, and when the upper rotary plate 1 12 rises, the liquid on the lower rotary plate 11 1 side Is securely held. Therefore, drying of the workpieces 400 and 400 'is prevented.
- the work holding force has both the pressing force from above and the suction force from below. There is no danger of damaging the workpiece 400, 400 ⁇ ⁇ due to fluid pressure.
- the work 400 and the carrier 500 that have been transported to the work positioning unit 130 are separated by a reverse operation to the operation when the work positioning unit 130 is combined.
- the work 400 separated from the carrier 500 is stored in the transfer basket 310 by the first work transfer section 120, and the remaining carrier 500 is stored in the carrier storage section by the carrier transfer section 150. Housed in 140. In this way, the workpieces 400, 400 after double-side polishing are the second workpiece transport section 170 used to supply the workpiece and the workpiece positioning section 1
- the work is taken out of the double-side polishing apparatus 100 and transferred to the loader / unloader apparatus 200 by the transfer basket 310.
- the plurality of brushes 600, 600 stored in the brush storage section 180, the second work transfer section 1 7 0 lower rotary platen 1 1 It is conveyed one by one. This transfer is also performed in the same manner as the transfer of the work 400 and the carrier 500, and the rotary platen 111 performs an indexing operation.
- the support and platform 181 are moved up by one pitch each time the brush 600 is carried out, and the uppermost brush 600 is moved to the carry-out position.
- the transfer of the brush 600, 600 onto the lower rotating platen 1 1 1 is completed, the upper rotating platen 1 1 2 is lowered, and the brush 60 between the upper and lower polishing cloths is moved down.
- the rotary platen 111 performs the indexing operation, and the dresser storage section 190 sets the support base 191 to 1 each time the dresser 700 is carried out.
- the top dresser 700 is moved to the carry-out position by ascending the pitch.
- the double-side polishing apparatus 100 includes the brush storage section 180 for storing the brushes 600, 600, and the brush 600, 600,. Since a second work transfer section 170 is provided for transferring onto the board 111, the polishing cloth can be automatically brushed, so that frequent brushing such as every single polishing is possible. Therefore, the quality of polishing can be improved.
- the second workpiece transfer section 170 that transports the brushes 600, 600 onto the lower rotary platen 111, rotates the workpieces 400, 400 on the rotary platen. The device is transported up to 1 1 1 and these transports are also used, so the device configuration is simple.
- the double-side polishing apparatus 100 is provided with a dresser storage section 190 for storing the dressers 700, 700, and the dressers 700, 700,. Equipped with a second work transfer section 170 that transfers the workpiece to the upper position, and can automatically dress the polishing cloth. Frequent dressing, such as times, is possible, and even dressing per polishing is possible. Therefore, the quality of polishing can be further improved. Moreover, the second work transfer section 170 for transferring the dressers 700, 700,... Transfers the work 400, 400,. Yes, since these transports are also used, the device configuration is simple.
- the double-side polishing apparatus 100 is applicable to a force for polishing a silicon wafer, lapping of a silicon wafer, and is applicable to polishing and rubbing other than the silicon wafer. It is possible.
- the polishing apparatus main body 800 of the present embodiment is the polishing apparatus main body 110 used in the above-described double-side polishing apparatus 1QQ. As shown in FIGS. 12 and 13, the polishing apparatus main body 800 includes a lower frame 810 and an upper frame 820 provided thereon.
- the lower rotating table 8330 is attached to the lower frame 8100, and the upper rotating table 8400 is located on the lower rotating table 8300 in the upper frame 8200. And are mounted concentrically.
- the lower rotating platen 8330 is screwed on a rotating support shaft 831 having a cavity in the center.
- the rotation support shaft 831 is rotatably mounted on the lower frame 8110 by a plurality of bearings, and is driven to rotate by a motor 832, thereby rotating the rotation platen 830.
- the output shaft of the motor 832 is connected to the speed reducer 833, and the gear 8 3 4 is mounted on the output shaft of the speed reducer 8 3 4
- the gear 8 3 4 is mounted on the rotation support shaft 8 3 1
- the rotation support shaft 831 rotates to rotate the rotating platen 830.
- a polishing pad 839 is attached to the upper surface of the rotating platen 83.
- a center gear 850 is supported by a plurality of bearings on the center of the rotating platen 830 so that it can rotate independently of the rotating platen 830.
- the center gear 850 is driven to rotate independently of the rotary platen 830 by a rotary drive shaft 851 penetrating a cavity formed in the center of the rotary support shaft 831.
- the pulley 852 attached to the lower end of the rotary drive shaft 851 and the pulley 885 attached to the main power shaft of the reducer 881 described later are connected by the belt 886. Then, the rotation drive shaft 851 rotates, and the center gear 850 is driven to rotate independently with respect to the rotary platen 830.
- a plurality of rotation means 860, 860,... are arranged at equal intervals in the circumferential direction.
- the workpiece accommodation hole 871 for accommodating the wafer 890 is provided eccentrically from the center of the 70, and the outer peripheral surface thereof is provided with a tooth portion 872 that meshes with the center gear 850. Have been.
- Each rotation means 8600 has a pair of rotating gears 861 and 861 which symmetrically engage with the tooth 887 of the corresponding carrier 870 from the outside. Rotating gear
- each guide sleeve 862 a shaft body 863 is movably penetrated in the circumferential direction and the axial direction, and a rotating gear 861 is attached to an upper end thereof.
- a pulley 865 is spline-coupled to the lower end of the shaft body 863.
- the pair of shafts 863, 863 are mounted on the lower frame 810 It is driven up and down by a cylinder 867 as a device.
- the rotating gears 861 and 861 of the rotation means 860 are driven up and down in the axial direction while leaving the pulleys 865 and 865 at fixed positions.
- the pulleys 865, 865 are rotationally driven by a drive mechanism described later, so that the rotary gears 861, 861 rotate in the same direction in synchronization.
- a motor 880 attached to the lower frame 810 is used as shown in FIGS.
- the output shaft of the motor 880 is connected to the speed reducer 881.
- the speed reducer 881 has an output shaft projecting up and down, and a pulley 882 is attached to the upper output shaft.
- the pulleys 882 and a plurality of rotation means 860, 860,.. 3 is hung. Accordingly, when the motor 880 operates, the rotating gears 861, 860 of the plurality of rotation means 860, 860 provided around the rotating platen 83 are provided. 1 rotates synchronously in the same direction.
- Reference numeral 884 denotes a tension idle roller provided between the adjacent rotation means 860 and 860.
- a pulley 885 is mounted on the lower output shaft of the reducer 881.
- the pulley 885 is connected to the pulley 852 attached to the lower end of the rotary drive shaft 851 of the center gear 851 by the belt 886 as described above. Therefore, when the motor 880 operates, the center gear 850 also rotates.
- the rotation direction and the peripheral speed of the center gear 850 are set to be the same as the rotation direction and the peripheral speed of the rotating gears 861, 861 of the plurality of rotation means 860, 860. .
- the upper rotating surface plate 8400 is provided concentrically on the lower rotating surface plate 8300.
- a polishing pad 849 is affixed to the lower surface of the rotating platen 840.
- the rotating surface plate 84 is connected to the lower end of a vertical support shaft 841.
- the support shaft 841 is rotatably supported in the upper frame 82 by a plurality of bearings via a plurality of bearings.
- the rotation of a motor 842 also provided in the upper frame 82
- the rotating plate 8 40 is driven to rotate independently of the lower rotating plate 8 3 0 .
- the rotating platen 840 is driven up and down in the direction of the rotation axis together with the motor 842 and the speed reducer 843 in the upper frame 820 by an elevating device (not shown).
- the configuration of the polishing apparatus main body 800 is as described above. Hereinafter, the method of use and operation of the polishing apparatus main body 800 will be described.
- the center gear 850 rotates. Further, in a plurality of rotation means 860, 860,... Disposed around the lower rotating platen 830, a pair of rotating gears 861, 861 rotate.
- the center gear 850 is engaged with the outer carrier 870 from the inside, and the pair of rotary gears 861 and 861 are engaged with the inner carrier 870 from the outer symmetric two positions. I have.
- the rotation direction and the peripheral speed of the center gear 850 are the same as the rotation direction and the peripheral speed of the rotary gears 861, 861.
- the carriers 870, 870 ⁇ ′ between the rotating platens 830, 840 rotate in the same direction at the fixed position, and thereby, the carrier within the carriers 870, 870 ⁇ ⁇ 890, 890 ⁇ ⁇ perform eccentric rotation.
- both surfaces of the wafers 890, 890... are simultaneously polished by the polishing pads 839, 849.
- the rotating gears 861, 861 of the rotating means 860 are repeatedly moved up and down with a gentle cycle in the direction of the rotating shaft while being engaged with the carrier 870.
- the upper rotating platen 840 is raised again, and the rotating gears 861, 861 of the rotation means 860 are lowered from the fixed position. Then, the wafers 890, 890 are taken out of the carriers 870, 870 on the rotating platen 830.
- the carriers 870, 870,... Rotate in the same direction at fixed positions, and do not revolve around the center gear 850. Therefore, the internal gear used for the revolution is not required, and the polishing accuracy does not decrease due to the manufacturing error of the internal gear. Therefore, in the case of a large device in which the diameter of the carrier 870, 870,. However, polishing accuracy equal to or higher than that of the conventional apparatus is secured.
- a large internal gear equivalent to the outer diameter of the surface plate is omitted, and its drive mechanism is also omitted. Therefore, the size of the device is reduced even if the rotation means 860, 860 The cost can be reduced.
- the rotating gears 861, 861 are made of resin. As a result, no metal powder is produced even when the carrier 870 is engaged. For this reason, contamination of the wafer 890 by metal powder is prevented.
- the carrier 870 is also made of resin. Also, the production cost is lower than that of metal.
- a plurality of rotation means 860, 860,... are driven by a common drive source (motor 880), and the drive source also serves as a drive source for the center gear 850. Therefore, the synchronization accuracy is high and the size can be reduced.
- the rotating surface plates 830 and 840 are driven independently of the center gear 850 and the rotation means 860, 860 ⁇ , but this allows the rotation speed of each to be adjusted freely.
- the advantage is that the polishing conditions can be set over a wide range.
- the carrier 870, 870... Does not revolve and its movement is simple, it is of great significance that the polishing conditions can be set in a wide range by independent driving of the rotary platens 830, 840. With. From this point, it is more advantageous to separately drive the rotating platens 830, 840 by the motors 832, 842.
- Another carrier driving mechanism in the polishing apparatus main body 800 will be described with reference to FIGS.
- This carrier driving mechanism is different from the above-described carrier driving mechanism in the rotation means 860. That is, in the rotation means 8600 here, the number of the rotating gear 861 is one, and it is arranged on a straight line connecting the center of the center gear 850 and the center of the carrier 870. In other words, in this rotation means 86 0, the center one gear 85 0 and rotating gear 8 6 1 mesh. Then, the center gear 850 and the rotary gear 861 rotate in the same direction at the same peripheral speed, so that the carrier 870 rotates at a fixed position.
- the number of carriers 870 is set to five.
- the number of carriers is not limited. Therefore, the number of the rotation means 860 is not limited.
- the belt can be replaced by a chain.
- Each rotation means 8660 has a worm gear 864 made of resin that engages with a tooth portion 872 of the corresponding carrier 870 from the outside.
- the worm gear 864 is horizontally supported rotatably in the lower frame 810, and engages the carrier 870 from the outside on a straight line connecting the center of the center gear 850 and the center of the carrier 870.
- a vertical drive shaft 869 is connected to the worm gear 864 via helical gears 8668, 8688, and the pulley 8665 attached to the drive shaft 8669 is driven by the aforementioned drive mechanism.
- the worm gears 864 of the rotation means 860 rotate in the same direction in synchronization.
- the carriers 870, 870,... Rotate in the same direction at a fixed position, and do not revolve around the transmission / reception gear 850. Therefore, the internal gear used for revolution is not required, and there is no reduction in polishing accuracy due to manufacturing errors of the internal gear.
- 870 ⁇ ⁇ large-sized equipment with a large diameter ensures the same or higher polishing accuracy than conventional equipment.
- the size of the device is small even considering the addition of the rotation means 860, 860 And reduce costs.
- the worm gear 864 is made of resin, so that no metal powder is generated even when the worm gear 864 is engaged with the carrier 870. For this reason, contamination of the wafer 890 by metal powder is prevented.
- the carrier 870 is also made of resin, and its production cost is lower than that of metal.
- the worm gear 864 is fixed at a position where it engages with the wafer 870, but by being movable in a direction perpendicular to the rotation axis, the carrier 870 is set.
- the operation of removing and removing is simplified.
- the number of carriers 870 is five, but the number is not limited. Therefore, the number of the rotation means 860 is not limited.
- the belt can be replaced with a chain.
- the main body of the polishing apparatus described so far may be of a planetary gear system that combines force rotation and revolution, which only performs rotation of the carrier at a fixed position between the upper and lower rotating platens.
- the polishing apparatus main body 900 of this embodiment is of a type in which the planetary motion is performed between the upper and lower rotary platens.
- the main body 900 of the polishing apparatus has an annular lower surface plate 9001 supported horizontally and an annular lower surface plate 91 facing the lower surface plate 91 from above.
- An upper surface plate 902 and a plurality (usually 3 or 5) of carriers 903, 903, 903 disposed between upper and lower surface plates 901, 902 are provided.
- the lower surface plate 901 is a disk having no through hole in the center.
- the lower stool 91 is mounted concentrically on the rotating shaft 916.
- a sun gear 907 is fixed to the center of the lower stool 901 by bolting.
- an annular drain pan 915 is provided below the lower stool 902 to receive the abrasive fluid discharged around the lower stool 1.
- the upper platen 902 is driven independently of the lower platen 901 by a drive mechanism (not shown).
- the plurality of carriers 900, 903, 903 are rotatably supported at equal circumferential positions on the lower surface plate 901.
- Each carrier 903 is a so-called planetary gear that meshes with a sun gear 907 provided inside an annular lower surface plate 901 and a ring-shaped inner gear 908 provided outside.
- the wafer 910 is held at a position eccentric from the center of the carrier 903.
- Each carrier 903 performs a planetary motion that revolves while rotating between the rotating upper and lower platens 90 1, 90 2, and as a result, the wafer eccentrically held by each carrier 90 3 910 is an eccentric rotating carrier between the polishing pads 909 and 909 It performs kinetic and orbital movements, and the combination of these movements results in uniform polishing on both sides.
- the polishing liquid is supplied between the upper and lower surface plates 91 and 902 by utilizing a negative pressure due to a rotational speed difference between the upper surface plate 902 and the carrier 903.
- An annular polishing liquid pan 911 is attached to the support member 906 of the upper platen 902, and the polishing liquid in the pan is supplied to the upper platen 902 and the carrier 9.
- the negative pressure due to the rotational speed difference of 0 3 it is configured to be supplied between the surface plates 9 0 1 and 9 0 2 through the abrasive fluid supply path 9 12 formed in the upper surface plate 9 0 2.
- the residence time of the polishing liquid is longer than in the case where the polishing liquid supplied between the upper and lower platens 91 and 902 is discharged in both the center side and the outer peripheral side, and the The utilization rate improves.
- the rotating shaft 916 that drives the lower platen 91 rotates will be contaminated with the abrasive liquid.
- a part of the polishing liquid can be intensively supplied to the center without passing through the upper platen 102.
- the lower lapping plate 901 is an annular body.
- the sun gear 907 and its drive shaft are provided inside, and a ring-shaped inner gear 908 is provided on the outside. Due to this structure, the lower surface plate 901 and the sun gear 9 07, and between the lower platen 901 and the inner gear 908, there is a gap.
- the abrasive fluid supplied between the surface plates 91 and 102 using the negative pressure due to the rotation speed difference between the surface plates 91 and 102 is drained directly from the gap on the side of the inner gear 908.
- it is discharged from the gear on the side of the sun gear 9 07 to the drain pan 9 15 through the drain passage 9 14. That is, the polishing liquid supplied between the surface plates 91 and 902 is discharged in both directions of the center side and the peripheral side. For this reason, there has been a problem that the polishing liquid does not sufficiently stay between the surface plates 91 and 902, and a part of the polishing liquid goes to a drainage system without being used for polishing, thereby reducing the utilization rate.
- the abrasive fluid flowing into the gap on the side of the sun gear 907 flows into the lower platen 901 and the drive unit of the sun gear 907, which are concentrated in the center of the machine, and the shaft of the drive unit is shuffled and sealed. Was causing contamination.
- the sun gear 907 that causes the carrier 903 to carry out planetary motion between the upper and lower rotary bases 91, 902 is provided with a lower rotary base.
- the abrasive fluid supplied between the upper and lower rotating platens 901, 902 is discharged only to the outer peripheral side. Can be enhanced.
- the abrasive fluid supplied between the upper and lower rotary platens 91 and 902 is not discharged to the center side, it is possible to prevent the drive unit concentrated at the center from being contaminated by the abrasive fluid. .
- Another embodiment of the polishing apparatus body will be described with reference to FIGS. 22 and 23. You.
- the polishing apparatus main body of the present embodiment is different from the polishing apparatus main body 900 shown in FIGS. 20 and 21 in the carrier 903.
- the other configuration is substantially the same as that of the main body of the polishing apparatus shown in FIGS. 20 and 21, and a detailed description thereof will be omitted.
- the carrier 903 used in the polishing apparatus main body of the present embodiment has a disc-like shape in which teeth 903a meshing with the sun gear and the inner gear are formed on the outer peripheral surface. It is a planetary gear.
- the carrier 903 has an eccentric hole 917 into which a wafer 910 collected from a silicon single crystal rod is fitted.
- a notch 9110a On the outer peripheral surface of the wafer 910, a notch 9110a called a V notch indicating a crystal orientation is formed.
- a V-shaped projection 903 b into which the notch 9110 a fits is provided on the inner peripheral surface of the carrier 903 facing the hole 917.
- the convex part 903b formed on the inner peripheral surface of the carrier 903 also has However, it becomes a half moon shape corresponding to this orientation flat.
- the wafer 910 held in the hole 917 of the carrier 903 does not rotate relative to the carrier 903, and in any case, the carrier 903 does not rotate. It rotates together with 3. For this reason, abrasion of the peripheral portion due to the idling phenomenon of the wafer 910 and damage due to this are avoided, and the risk of causing crystal defects such as slip-dislocation during device formation is eliminated.
- the carrier 903 and the carrier 910 are changed due to a change in the contact surface between the carrier 903 and the wafer 910 during polishing. Wear of the inner peripheral surface is also prevented.
- the wafer 910 in the main body of the polishing machine in which the aerial 910 makes the planetary motion between the upper and lower surface plates 910 and 902, the wafer 910 must move integrally with the carrier 903. Therefore, the diameter and the like of the hole 917 are designed so that the wafer 910 held in the hole 917 of the carrier 9103 does not idle.
- the wafer 910 is transported to the carrier 900 due to minute projections of the polishing pad, wear of the inner peripheral surface of the carrier 903, and imbalance in the supply of the polishing liquid. May not rotate together with 3 but rotate on its own. If the spinning phenomenon of the wafer 910 continues, the peripheral portion of the wafer 910 will be worn and damaged, thereby causing a risk of crystal defects such as slip and dislocation when forming the device. Sex is born.
- the carrier 903 also promotes abrasion of the inner peripheral surface, and when the material is a resin reinforced with glass fiber or the like, the glass in the resin is exposed from the inner peripheral surface, It also promotes damage to the 910.
- the wafer transfer device 104 of the present embodiment is used for the second work transfer section 170 of the double-side polishing device 100.
- the wafer transfer device 104 has a horizontal robot arm 1041, which is driven in three directions X, Z, and 0 by a drive mechanism (not shown), and a tip of the robot arm 1041, And an outer peripheral annular suction type chuck 104 mounted horizontally on the portion.
- the outer circumferential annular suction type chuck 1044 is made of a disk having the same outer diameter as that of the device A101.
- the chuck 104 has a force-up shape in which the periphery of the lower surface protrudes annularly downward so that only the periphery of the lower surface contacts the upper surface of the wafer 101.
- a plurality of suction ports 104 b are provided at predetermined intervals in the circumferential direction on the lower surface of the annular protrusion 104 a to suck the wafer 101. .
- the plurality of suction ports 104 b are connected to a suction device (not shown) via a vacuum pipe 104.
- This wafer transfer device 104 is used as follows.
- the chuck 104 is guided above the wafer 1001 to be transferred.
- the chuck 104 is lowered to bring the lower surface of the projecting portion 104a into contact with the upper surface of the peripheral portion of the wafer 1001.
- the upper surface of the peripheral portion of the wafer 100 is suctioned to the chuck 104 over the entire circumference.
- the chuck 104 is moved in this state, and the suction is stopped with the wafer 100 lowered to the target position.
- the wafer 101 before polishing placed on the transfer stage on the load side is transferred to the carrier of the double-side polishing apparatus.
- an wafer transfer device for transferring the wafer 100 after polishing set in the carrier of the double-side polishing machine to a transfer stage on the unloading side. It is also possible to use it.
- the upper surface of the wafer 1001 is sucked by the chuck 104, but the suction contact portion is limited to the peripheral portion. Since this peripheral portion is usually outside the device formation region, contact during handling is permissible. Therefore, the effect on device formation is minimal.
- the width of the protrusion 104a in contact with the lower surface of the wafer 1001 is preferably 3 to 5 mm outside the device formation region. If the width is too small, the retention and stability of the wafer 1001 will be reduced. If this width is too large, contamination and damage to the effective portion of the wafer 101 becomes a problem.
- the wafer transfer apparatus 100 of the present embodiment is used for the first work transfer section 120 of the double-side polishing apparatus 100.
- the wafer transfer device 103 has a horizontal robot arm 103 driven in three directions of X, Z, and ⁇ ⁇ ⁇ by a driving mechanism (not shown), and a tip of the robot arm 103. And an outer peripheral arc-shaped suction type chuck 104 mounted horizontally on the portion.
- the outer periphery arc-shaped suction type chuck 104 has an arc shape corresponding to the outer peripheral surface shape of the wafer 1001.
- This arc-shaped chuck 100 3 4 has an arc-shaped horizontal surface 110 3 4a that contacts the lower surface of the peripheral edge of the wafer 1001 and an arc-shaped chuck 110 that contacts the outer peripheral surface of the peripheral edge.
- a plurality of suction ports 1 0 3 4 c are provided on the arc-shaped horizontal surface 1 0 3 4 a, which has a vertical surface 1 0 Are provided at predetermined intervals, more specifically, distributed over the entire horizontal plane 1034a.
- the plurality of suction ports 1034c are connected to a suction device (not shown) via a vacuum pipe 103, and the wafer transfer device 103 is used as follows. First, the chuck 104 is guided below the peripheral portion of the wafer 100 to be transferred.
- the chuck 103 is raised to bring the arc-shaped horizontal surface 110 34 a into contact with the lower surface of the peripheral portion of the wafer 100 1, and the arc-shaped vertical surface 110 34 b to the same peripheral edge. Abut the outer peripheral surface of the part.
- the lower surface of the peripheral portion of the wafer 1001 is partially adsorbed to the chuck 10034 in a part in the circumferential direction.
- the chuck 104 is moved, and the suction is stopped in a state where the wafer 101 is lowered to the target position.
- the wafer 1001 before polishing housed in the basket is transferred to the delivery stage.
- it can also be used as an aerial transfer device for transferring the polished laser 1001 mounted on the transfer stage on the unloading side to a basket on the unloading side.
- the wafer 1001 is suction-held from the lower surface side by the chuck 104, but the suction contact portion is formed on the periphery of the wafer 1001. Is limited to Since the periphery of the wafer is usually outside the scope of device formation, contact during handling is permissible. Therefore, the effect of forming the device is negligible.
- the width of the horizontal plane 103a in contact with the lower surface of the wafer 1001 is preferably 3 to 5 mm outside the device formation region. If the width is too small, the retention and stability of the wafer 1001 will be reduced. If the width is too large, contamination and damage in the effective portion of the wafer 1001 becomes a problem.
- the circumferential length of the horizontal surface 34a is preferably 100 ° to 150 ° in terms of the central angle. If it is too small, the retention and stability of wafer 101 will be reduced, and if it is too large, wafer 101 cannot be attached to and detached from the basket.
- a wafer transfer device which is an auxiliary equipment
- a bottom-surface suction type wafer transfer that is conventionally provided between the basket and the transfer stage and transfers the wafer from the basket to the transfer stage.
- the bottom surface suction type wafer transfer device located on the basket side is indispensable to transfer wafers to and from the basket, but the tongue-absorbing chuck is attached to the center of the bottom surface of the wafer. There is a danger that the bottom surface of the wafer will be contaminated or damaged due to direct contact from the outer periphery to the outer periphery. This poses a problem in double-side polishing in which the lower surface also requires precision and cleanness comparable to the upper surface.
- the top surface suction type wafer transfer device located on the side of the polishing device main body is indispensable for setting the wafer in the carrier of the polishing device main body and removing the wafer after polishing from the carrier.
- the disc-shaped full-surface suction type chuck makes direct contact with the entire upper surface of the wafer, the upper surface may be contaminated or damaged. And it goes without saying that this is also a problem with double-side polishing.
- the wafer transfer apparatus 103 of the present embodiment 103, 104 has the suction-type chucks 104, 104 in surface contact with the surface of the wafer 100.
- the wafer 100 can be securely held, and the surface contact portion is limited to the peripheral portion of the wafer 100.
- the impact of handling can be negligible. Therefore, device formation can be performed with good yield even in a large-diameter wafer that requires double-side polishing.
- the first double-side polishing method and apparatus of the present invention combine the work in a united state that can be separated from the carrier before supplying the work onto the lower platen.
- the uniting operation can be reliably performed even for a 12-inch silicon wafer. This eliminates the need for monitoring and reworking by workers, and enables the fully automatic supply of work onto the lower surface plate, enabling fully automatic double-side polishing even for a 12-inch silicon wafer. The polishing cost is greatly reduced.
- the work between the rotary platens is ejected by a liquid from the upper side and a fluid called Z or suction to the lower side.
- the pressure ensures that it is held on the lower rotating platen side. This enables automatic discharge of the work. In addition, mechanical damage and drying of the work are prevented, and the finish quality of the double-sided polishing work is improved.
- the second double-side polishing method and apparatus according to the present invention can perform high-quality double-side polishing at low cost, and thus can be used for polishing silicon wafers, especially 12-inch wafers and eight-piece wafers that require high finish quality. Particularly suitable for o
- the third double-side polishing apparatus is disposed between the upper and lower rotating platens in place of the plurality of carriers, and at least rotates between the upper and lower rotating platens as in the case of the carrier, thereby forming the upper and lower rotating platens.
- a storage section for storing a plurality of processing bodies that process the polishing cloth attached to the opposite surface of the workpiece, and a plurality of processing bodies are supplied between the upper and lower rotating platens from the storage section, and the used processing bodies are rotated up and down. It is equipped with a transport unit that discharges from between the surface plates, and the brush and dresser that mechanically processes the polishing cloth automatically supplies and discharges, so frequent brushing and dressing are performed. High-quality double-side polishing using singing can be performed efficiently and economically.
- the third double-side polishing apparatus of the present invention even in the case of a silicon wafer of 12 inches, efficient and economical double-side polishing can be performed by fully automatic operation, and the polishing cost is greatly reduced.
- a plurality of workpieces are simultaneously polished on both sides by holding a plurality of carriers in a fixed position between a pair of rotary platens and rotating them.
- the sun gear that causes the carrier to carry out planetary motion between the upper and lower rotating platen is integrated into the lower rotating platen, so that it is supplied between the upper and lower rotating platen. Since the polishing liquid to be discharged is discharged only to the outer peripheral side, the utilization rate of the polishing liquid can be increased. In addition, since the abrasive fluid supplied between the upper and lower rotating platens is not discharged to the center side, it is possible to prevent the drive unit concentrated at the central portion from being contaminated by the abrasive fluid.
- the outer peripheral surface of the wafer is By providing a convex portion that fits into the notch formed on the peripheral surface, the spinning phenomenon of the wafer in the carrier can be achieved despite the complex planetary motion of the wafer held in the carrier. Completely prevented. For this reason, the periphery of the wafer can be completely protected, and the quality and yield of the wafer can be improved. In addition, the durability of the carrier is improved by suppressing the abrasion of the inner peripheral surface of the carrier.
- the chuck of the suction type is brought into surface contact with the surface of the wafer, so that the wafer can be reliably held.
- the surface contact portion is limited to the peripheral portion of the wafer, the influence of handling at the time of device formation can be reduced even in double-side polishing. Therefore, even in a large-diameter wafer that requires polishing on both sides, a device can be formed with a high yield.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/743,502 US7648409B1 (en) | 1999-05-17 | 2000-05-17 | Double side polishing method and apparatus |
DE10081456T DE10081456T1 (de) | 1999-05-17 | 2000-05-17 | Vefahren und Vorrichtung zum doppelseitigen Polieren |
DE10081456.5A DE10081456B9 (de) | 1999-05-17 | 2000-05-17 | Vorrichtung zum doppelseitigen Polieren |
US12/625,073 US8002610B2 (en) | 1999-05-17 | 2009-11-24 | Double side polishing method and apparatus |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/135652 | 1999-05-17 | ||
JP13563199A JP4235313B2 (ja) | 1999-05-17 | 1999-05-17 | 両面研摩装置 |
JP13563799A JP2000326213A (ja) | 1999-05-17 | 1999-05-17 | 両面研摩方法及び装置 |
JP11/135631 | 1999-05-17 | ||
JP11/135637 | 1999-05-17 | ||
JP13565299A JP4294162B2 (ja) | 1999-05-17 | 1999-05-17 | 両面研摩装置 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/743,502 A-371-Of-International US7648409B1 (en) | 1999-05-17 | 2000-05-17 | Double side polishing method and apparatus |
US12/625,073 Division US8002610B2 (en) | 1999-05-17 | 2009-11-24 | Double side polishing method and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000069597A1 true WO2000069597A1 (fr) | 2000-11-23 |
Family
ID=27317117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/003159 WO2000069597A1 (fr) | 1999-05-17 | 2000-05-17 | Procede et dispositif de polissage double face |
Country Status (3)
Country | Link |
---|---|
US (2) | US7648409B1 (ja) |
DE (2) | DE10081456B9 (ja) |
WO (1) | WO2000069597A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG89336A1 (en) * | 1999-06-30 | 2002-06-18 | Hoya Corp | Scrub cleaning device, scrub cleaning method, and manufacturing method of information recording medium |
CN106926133A (zh) * | 2017-04-19 | 2017-07-07 | 深圳市长盈精密技术股份有限公司 | 陶瓷工件的抛光方法 |
CN108453598A (zh) * | 2018-03-02 | 2018-08-28 | 汤蒙琪 | 一种机械铁质板材表面双层同步抛光设备 |
TWI668076B (zh) * | 2015-04-20 | 2019-08-11 | 日商不二越機械工業股份有限公司 | 雙側硏磨裝置及硏磨方法 |
CN115157088A (zh) * | 2022-07-25 | 2022-10-11 | 张建文 | 一种太阳能电板模具生产用加工系统及加工方法 |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10081456B9 (de) * | 1999-05-17 | 2016-11-03 | Kashiwara Machine Mfg. Co., Ltd. | Vorrichtung zum doppelseitigen Polieren |
JP5493633B2 (ja) | 2009-09-18 | 2014-05-14 | 株式会社Sumco | 研磨方法及びその装置 |
US8602842B2 (en) | 2010-03-12 | 2013-12-10 | Wayne O. Duescher | Three-point fixed-spindle floating-platen abrasive system |
US8647171B2 (en) | 2010-03-12 | 2014-02-11 | Wayne O. Duescher | Fixed-spindle floating-platen workpiece loader apparatus |
US8740668B2 (en) | 2010-03-12 | 2014-06-03 | Wayne O. Duescher | Three-point spindle-supported floating abrasive platen |
US8500515B2 (en) | 2010-03-12 | 2013-08-06 | Wayne O. Duescher | Fixed-spindle and floating-platen abrasive system using spherical mounts |
DE102010043627A1 (de) | 2010-11-09 | 2012-05-10 | Siltronic Ag | Verfahren und Vorrichtung zum Reinigen von Poliertüchern |
JP5671735B2 (ja) * | 2011-01-18 | 2015-02-18 | 不二越機械工業株式会社 | 両面研磨装置 |
DE102011080323A1 (de) * | 2011-08-03 | 2013-02-07 | Siltronic Ag | Verfahren zum Einebnen einer Halbleiterscheibe mit verbesserter Kantenschonung |
US8807318B2 (en) * | 2011-09-20 | 2014-08-19 | International Business Machines Corporation | Multi-generational carrier platform |
US9499921B2 (en) | 2012-07-30 | 2016-11-22 | Rayton Solar Inc. | Float zone silicon wafer manufacturing system and related process |
KR101438971B1 (ko) * | 2012-12-27 | 2014-09-15 | 현대자동차주식회사 | 로봇그리퍼 및 그 제어방법 |
JP6113624B2 (ja) * | 2013-10-11 | 2017-04-12 | 株式会社荏原製作所 | 基板処理装置および基板処理方法 |
US9138914B1 (en) * | 2014-01-09 | 2015-09-22 | Joshua Higgins | Masonry veneer machine |
DE102015220090B4 (de) * | 2015-01-14 | 2021-02-18 | Siltronic Ag | Verfahren zum Abrichten von Poliertüchern |
CN112658833A (zh) * | 2021-01-04 | 2021-04-16 | 张友 | 一种整体式轴瓦内圈全自动研磨设备 |
CN113894635B (zh) * | 2021-11-03 | 2022-06-21 | 安徽格楠机械有限公司 | 基于自学习的智能硅基晶圆超精密研磨抛光机 |
CN115533739A (zh) * | 2022-09-21 | 2022-12-30 | 中国电子科技集团公司第二十九研究所 | 一种热沉载板表面超薄镀层均匀研磨抛光用组合工装 |
CN116494028B (zh) * | 2023-06-29 | 2023-09-22 | 苏州磐宇科技发展有限公司 | 一种冶金零件磁力抛光机 |
CN117428580B (zh) * | 2023-12-15 | 2024-03-19 | 成都市凯林机械贸易有限责任公司 | 一种阀门加工用抛光装置 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5859559U (ja) * | 1981-06-30 | 1983-04-22 | 日立金属株式会社 | 両面研摩機用キヤリヤ |
JPS60259372A (ja) * | 1984-06-04 | 1985-12-21 | Yokogawa Hokushin Electric Corp | 両面ポリツシング方法 |
JPS61203264A (ja) * | 1985-02-12 | 1986-09-09 | Toa Kogyo Kk | ラツピングマシン用ワ−ク自動装填及び装出方法とその装置 |
JPS61151859U (ja) * | 1985-03-11 | 1986-09-19 | ||
JPS6225148U (ja) * | 1985-07-31 | 1987-02-16 | ||
JPH01321257A (ja) * | 1988-06-21 | 1989-12-27 | Nitto Denko Corp | 薄板と粘着テープの貼着方法 |
JPH0268948A (ja) * | 1988-09-05 | 1990-03-08 | Canon Inc | ウエハのウエハステージへの装着方法 |
JP2546640B2 (ja) * | 1986-04-07 | 1996-10-23 | 東芝機械株式会社 | 研磨装置におけるキヤリア位置決め方法 |
JPH09193002A (ja) * | 1996-01-12 | 1997-07-29 | Nippon Steel Corp | ウェーハ用ラップ機の定盤修正キャリヤ |
JPH09253994A (ja) * | 1996-03-21 | 1997-09-30 | Nippon Light Metal Co Ltd | 磁気ディスク用基板の研磨方法 |
Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5859559A (ja) | 1981-10-02 | 1983-04-08 | Yuasa Battery Co Ltd | 鉛蓄電池用ペ−スト式正極板 |
JPS5958827A (ja) * | 1982-09-28 | 1984-04-04 | Toshiba Corp | 半導体ウエ−ハ、半導体ウエ−ハの製造方法及び半導体ウエ−ハの製造装置 |
JPS5981054A (ja) | 1982-10-29 | 1984-05-10 | Toshiba Corp | 研磨布クリーニング方法 |
JPH0648562B2 (ja) | 1984-12-25 | 1994-06-22 | 三菱電機株式会社 | 回転ヘツド型磁気記録再生装置 |
JPH0718631B2 (ja) | 1985-02-20 | 1995-03-06 | 松下冷機株式会社 | 冷蔵庫の運転制御装置 |
JPH0674359B2 (ja) | 1985-07-26 | 1994-09-21 | 電気化学工業株式会社 | 滞留熱安定性に優れる熱可塑性樹脂組成物 |
DE3624878A1 (de) * | 1985-07-31 | 1987-02-12 | Speedfam Corp | Flachlaeppmaschine |
JPS6393563A (ja) | 1986-06-10 | 1988-04-23 | Otani Reiji | ウエツトベ−スキヤリヤ単位ワ−ク装填及び装出装置 |
JPS6368359A (ja) * | 1986-09-10 | 1988-03-28 | Otani Reiji | ラツピングマシンのキヤリヤ単位ワ−ク同時装填及キヤリヤスライド心出し位置決め方法 |
JP2533224B2 (ja) | 1990-07-09 | 1996-09-11 | 富士通株式会社 | 媒体搬送装置 |
US5149338A (en) * | 1991-07-22 | 1992-09-22 | Fulton Kenneth W | Superpolishing agent, process for polishing hard ceramic materials, and polished hard ceramics |
JPH0615565A (ja) * | 1991-12-18 | 1994-01-25 | Shin Etsu Handotai Co Ltd | ウエーハ自動ラッピング装置 |
DE4392793T1 (de) * | 1992-06-15 | 1997-07-31 | Speedfam Corp | Verfahren und Vorrichtung zum Polieren von Wafern |
US5329732A (en) | 1992-06-15 | 1994-07-19 | Speedfam Corporation | Wafer polishing method and apparatus |
US5422316A (en) * | 1994-03-18 | 1995-06-06 | Memc Electronic Materials, Inc. | Semiconductor wafer polisher and method |
US6217433B1 (en) * | 1995-05-16 | 2001-04-17 | Unova Ip Corp. | Grinding device and method |
JP3379097B2 (ja) * | 1995-11-27 | 2003-02-17 | 信越半導体株式会社 | 両面研磨装置及び方法 |
JP3696690B2 (ja) * | 1996-04-23 | 2005-09-21 | 不二越機械工業株式会社 | ウェーハの研磨装置システム |
US5989108A (en) * | 1996-09-09 | 1999-11-23 | Koyo Machine Industries Co., Ltd. | Double side grinding apparatus for flat disklike work |
WO1998019301A1 (en) * | 1996-10-28 | 1998-05-07 | Hmt Technology Corporation | Apparatus for polishing planar substrates between rotating plates |
JPH10180624A (ja) * | 1996-12-19 | 1998-07-07 | Shin Etsu Handotai Co Ltd | ラッピング装置及び方法 |
JP3348429B2 (ja) * | 1996-12-26 | 2002-11-20 | 信越半導体株式会社 | 薄板ワーク平面研削方法 |
US5967882A (en) * | 1997-03-06 | 1999-10-19 | Keltech Engineering | Lapping apparatus and process with two opposed lapping platens |
JPH10264020A (ja) * | 1997-03-24 | 1998-10-06 | Speedfam Co Ltd | ワーク研磨方法及びワーク研磨システム |
EP0868968B1 (en) * | 1997-03-31 | 2003-02-19 | Nippei Toyama Corporation | Grinder and grinding method |
JPH10296614A (ja) | 1997-05-06 | 1998-11-10 | Sony Corp | 研磨用パッドのドレッシング方法及びドレッサ |
JPH1110530A (ja) * | 1997-06-25 | 1999-01-19 | Shin Etsu Handotai Co Ltd | 両面研磨用キャリア |
TW358764B (en) * | 1997-07-07 | 1999-05-21 | Super Silicon Crystal Res Inst | A method of double-side lapping a wafer and an apparatus therefor |
JPH11207611A (ja) * | 1998-01-21 | 1999-08-03 | Shin Etsu Handotai Co Ltd | 両面研磨装置におけるワークの自動搬送装置 |
JPH11207610A (ja) * | 1998-01-26 | 1999-08-03 | Speedfam Co Ltd | 研磨量制御システム及びその方法 |
WO2000010771A1 (fr) * | 1998-08-20 | 2000-03-02 | Hamai Co., Ltd. | Dispositif a plans paralleles pour systeme de train d'engrenages planetaire |
JP4256977B2 (ja) * | 1999-04-13 | 2009-04-22 | 不二越機械工業株式会社 | 両面研磨装置システム |
US6135863A (en) * | 1999-04-20 | 2000-10-24 | Memc Electronic Materials, Inc. | Method of conditioning wafer polishing pads |
JP2000326235A (ja) * | 1999-05-17 | 2000-11-28 | Inst Of Physical & Chemical Res | Elid用砥石とこれを用いたelid平面研削装置 |
DE10081456B9 (de) * | 1999-05-17 | 2016-11-03 | Kashiwara Machine Mfg. Co., Ltd. | Vorrichtung zum doppelseitigen Polieren |
US6234870B1 (en) * | 1999-08-24 | 2001-05-22 | International Business Machines Corporation | Serial intelligent electro-chemical-mechanical wafer processor |
US6210259B1 (en) * | 1999-11-08 | 2001-04-03 | Vibro Finish Tech Inc. | Method and apparatus for lapping of workpieces |
US6390909B2 (en) * | 2000-04-03 | 2002-05-21 | Rodel Holdings, Inc. | Disk for conditioning polishing pads |
-
2000
- 2000-05-17 DE DE10081456.5A patent/DE10081456B9/de not_active Expired - Lifetime
- 2000-05-17 DE DE10081456T patent/DE10081456T1/de active Granted
- 2000-05-17 US US09/743,502 patent/US7648409B1/en not_active Expired - Fee Related
- 2000-05-17 WO PCT/JP2000/003159 patent/WO2000069597A1/ja active Application Filing
-
2009
- 2009-11-24 US US12/625,073 patent/US8002610B2/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5859559U (ja) * | 1981-06-30 | 1983-04-22 | 日立金属株式会社 | 両面研摩機用キヤリヤ |
JPS60259372A (ja) * | 1984-06-04 | 1985-12-21 | Yokogawa Hokushin Electric Corp | 両面ポリツシング方法 |
JPS61203264A (ja) * | 1985-02-12 | 1986-09-09 | Toa Kogyo Kk | ラツピングマシン用ワ−ク自動装填及び装出方法とその装置 |
JPS61151859U (ja) * | 1985-03-11 | 1986-09-19 | ||
JPS6225148U (ja) * | 1985-07-31 | 1987-02-16 | ||
JP2546640B2 (ja) * | 1986-04-07 | 1996-10-23 | 東芝機械株式会社 | 研磨装置におけるキヤリア位置決め方法 |
JPH01321257A (ja) * | 1988-06-21 | 1989-12-27 | Nitto Denko Corp | 薄板と粘着テープの貼着方法 |
JPH0268948A (ja) * | 1988-09-05 | 1990-03-08 | Canon Inc | ウエハのウエハステージへの装着方法 |
JPH09193002A (ja) * | 1996-01-12 | 1997-07-29 | Nippon Steel Corp | ウェーハ用ラップ機の定盤修正キャリヤ |
JPH09253994A (ja) * | 1996-03-21 | 1997-09-30 | Nippon Light Metal Co Ltd | 磁気ディスク用基板の研磨方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG89336A1 (en) * | 1999-06-30 | 2002-06-18 | Hoya Corp | Scrub cleaning device, scrub cleaning method, and manufacturing method of information recording medium |
TWI668076B (zh) * | 2015-04-20 | 2019-08-11 | 日商不二越機械工業股份有限公司 | 雙側硏磨裝置及硏磨方法 |
CN106926133A (zh) * | 2017-04-19 | 2017-07-07 | 深圳市长盈精密技术股份有限公司 | 陶瓷工件的抛光方法 |
CN108453598A (zh) * | 2018-03-02 | 2018-08-28 | 汤蒙琪 | 一种机械铁质板材表面双层同步抛光设备 |
CN115157088A (zh) * | 2022-07-25 | 2022-10-11 | 张建文 | 一种太阳能电板模具生产用加工系统及加工方法 |
Also Published As
Publication number | Publication date |
---|---|
US8002610B2 (en) | 2011-08-23 |
DE10081456B9 (de) | 2016-11-03 |
US20100130111A1 (en) | 2010-05-27 |
DE10081456T1 (de) | 2001-09-27 |
US7648409B1 (en) | 2010-01-19 |
DE10081456B3 (de) | 2016-09-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2000069597A1 (fr) | Procede et dispositif de polissage double face | |
JP5149020B2 (ja) | ウエーハの研削方法 | |
TWI585838B (zh) | 基板背面之研磨方法及基板處理裝置 | |
KR102310075B1 (ko) | 척테이블과 연삭 장치 | |
JP5866658B2 (ja) | 位置決め機構 | |
JP6685707B2 (ja) | 研磨装置 | |
JP6879807B2 (ja) | 加工装置 | |
JP4294162B2 (ja) | 両面研摩装置 | |
JP4621261B2 (ja) | 両面研摩装置 | |
JP2017204606A (ja) | ウエーハ製造方法 | |
JP2018192412A (ja) | 加工装置 | |
JP4235313B2 (ja) | 両面研摩装置 | |
TW493228B (en) | Polishing pad component exchange device and polishing pad component exchange method | |
JP5399829B2 (ja) | 研磨パッドのドレッシング方法 | |
JP4753319B2 (ja) | 両面研摩装置並びにこれに使用されるブラシ及びドレッサ | |
JP7118558B2 (ja) | 被加工物の加工方法 | |
JP4477974B2 (ja) | 研磨装置 | |
JP4649460B2 (ja) | 両面研摩装置用ドレッサ収納機構 | |
JP2016078132A (ja) | 加工装置 | |
JP2019141950A (ja) | 研削装置 | |
JP2000326213A (ja) | 両面研摩方法及び装置 | |
JP2024007123A (ja) | ウェーハの研削方法 | |
JP2022134856A (ja) | チャックテーブルの洗浄方法 | |
JP2006253524A (ja) | 半導体基板の受け渡し方法およびそれに用いる搬送機器 | |
JP5846846B2 (ja) | 省水仕様の研削装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): DE US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09743502 Country of ref document: US |
|
RET | De translation (de og part 6b) |
Ref document number: 10081456 Country of ref document: DE Date of ref document: 20010927 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10081456 Country of ref document: DE |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8607 |